Two previous studies of the effects of anoxia on protein synthesis in anoxia-tolerant turtles (Trachemys scripta elegans, Chrysemys picta bellii) have generated opposing results. Using the flooding-dose method, we measured the rate of protein synthesis following injection and incorporation of a large dose of radiolabelled phenylalanine to resolve the question of whether anoxia results in a down...

The presence of a predator affects prey populations either by direct predation or modifying various parts their life history. We investigated whether the hatching time, developmental stage, and body size at common frog ( Rana temporaria ) embryos would alter in red-eared slider Trachemys scripta elegans as predator. affected all factors examined. found that absence slider, hatched 12 days, whil...

In classical turtle graphics a line is drawn to connect the turtle’s position vector before and after executing each FORWARD command. A hodograph turtle shadows the classical turtle and draws a line connecting the classical turtle’s direction vector before and after executing each TURN command. Here we study examples of the hodograph turtle in action along with several extensions. We show that ...

Genetic monitoring is becoming an increasingly effective tool for determining population stability in endangered species. Evaluating trends in genetic diversity allows conservation managers to identify serious declines and possible extinction risks for threatened populations. Here we used microsatellite analyses to assess the stability of one of the largest known breeding populations of the end...

We examine inherent variation in carbon and nitrogen stable isotope values of multiple soft tissues from a population of captive green turtles Chelonia mydas to determine the extent of isotopic variation due to individual differences in physiology. We compare the measured inherent variation in the captive population with the isotopic variation observed in a wild population of juvenile green tur...

Studies were performed on Na and K transport by red blood cells of the freshwater turtle under anaerobic and aerobic conditions. Although it had previously been assumed that cation transport in turtle red blood cells was dependent on respiration, the present data show greater Na efflux rates in N(2) than in O(2). However, ouabain inhibited Na transport by the same amount quantitatively in O(2) ...

AB=RA~T.-Rafinesque's bii-eared bats (Corynmhinus ra-t] use bridges as day roosts in parts of their range, but information on bridge use across their range is lacking. From May to Aug. 2002 we surveyed 1129 bridges (12.5%) within all 46 counties of South Carolina to determine use and selection of bridges as day roosts by big-eared bats and to document their distribution across the state. During...

Extensive use of torpor is a common winter survival strategy among bats; however, data comparing various torpor behaviors among species are scarce. Winter torpor behaviors are likely to vary among species with different physiologies and species inhabiting different regional climates. Understanding these differences may be important in identifying differing susceptibilities of species to white-n...

Two sea turtle species nest in the Mediterranean, the green turtle and the loggerhead turtle. Leatherbacks are widely distributed in the Mediterranean, although they do not have any permanent nesting area. Two other species, the hawksbill and the Kemp’s ridley turtle only occur occasionally. Available information on sea turtle populations in the Mediterranean Sea, including distribution, popula...